In addition, other company's cache drives (Corsair Accelerator, OCZ's Synapse, etc.) which all come with their own software which can be used on AMD's systems.

Maybe I missed it in the review, but I didn't come away with a clear picture of whether the RAMDisk function is a hardware based feature, or just a software based feature locked to AMD specific hardware. Is there actual coding built into the new APUs for this feature?